Emotet Now Using Unconventional IP Address Formats to Evade Detection

Social engineering campaigns involving the deployment of the Emotet malware botnet have been observed using "unconventional" IP address formats for the first time in a bid to sidestep detection by security solutions. This involves the use of hexadecimal and octal representations of the IP address...

Russian Hackers Heavily Using Malicious Traffic Direction System to Distribute Malware

Potential connections between a subscription-based crimeware-as-a-service CaaS solution and a cracked copy of Cobalt Strike have been established in what the researchers suspect is being offered as a tool for its customers to stage post-exploitation activities. Prometheus, as the service is calle...

FIN8 Hackers Spotted Using New 'White Rabbit' Ransomware in Recent Attacks

The financially motivated FIN8 actor, in all likelihood, has resurfaced with a never-before-seen ransomware strain called "White Rabbit" that was recently deployed against a local bank in the U.S. in December 2021. That's according to new findings published by Trend Micro, calling out the malware...

Cybercriminals Actively Target VMware vSphere with Cryptominers

Organizations running sophisticated virtual networks with VMware’s vSphere service are actively being targeted by cryptojackers, who have figured out how to inject the XMRig commercial cryptominer into the environment, undetected. Uptycs’ Siddharth Sharma has released research showing threat acto...

Earth Lusca Hackers Aimed at High-Value Targets in Government and Private Sectors

An elusive threat actor called Earth Lusca has been observed striking organizations across the world as part of what appears to be simultaneously an espionage campaign and an attempt to reap monetary profits. "The list of its victims includes high-value targets such as government and educational...

Mortar - Evasion Technique To Defeat And Divert Detection And Prevention Of Security Products (AV/EDR/XDR)

red teaming evasion technique to defeat and divert detection and prevention of security products.Mortar Loader performs encryption and decryption of selected binary inside the memory streams and execute it directly with out writing any malicious indicator into the hard-drive. Mortar is able to...

New BLISTER Malware Using Code Signing Certificates to Evade Detection

Cybersecurity researchers have disclosed details of an evasive malware campaign that makes use of valid code signing certificates to sneak past security defenses and stay under the radar with the goal of deploying Cobalt Strike and BitRAT payloads on compromised systems. The binary, a loader, has...

New Exploit Lets Malware Attackers Bypass Patch for Critical Microsoft MSHTML Flaw

A short-lived phishing campaign has been observed taking advantage of a novel exploit that bypassed a patch put in place by Microsoft to fix a remote code execution vulnerability affecting the MSHTML component with the goal of delivering Formbook malware. "The attachments represent an escalation ...

Conti Ransomware Gang Has Full Log4Shell Attack Chain

The Conti ransomware gang, which last week became the first professional crimeware outfit to adopt and weaponize the Log4Shell vulnerability, has now built up a holistic attack chain. The sophisticated Russia-based Conti group – which Palo Alto Networks has called “one of the most ruthless” of...

Hackers Using Malicious IIS Server Module to Steal Microsoft Exchange Credentials

Malicious actors are deploying a previously undiscovered binary, an Internet Information Services IIS webserver module dubbed "Owowa," on Microsoft Exchange Outlook Web Access servers with the goal of stealing credentials and enabling remote command execution. "Owowa is a C-developed .NET v4.0...

Log4Shell Is Spawning Even Nastier Mutations

The internet has a fast-spreading, malignant cancer – otherwise known as the Apache Log4j logging library exploit – that’s been rapidly mutating and attracting swarms of attackers since it was publicly disclosed last week. Most of the attacks focus on cryptocurrency mining done on victims’ dimes,...

Microsoft Details Building Blocks of Widely Active Qakbot Banking Trojan

Infection chains associated with the multi-purpose Qakbot malware have been broken down into "distinct building blocks," an effort that Microsoft said will help to proactively detect and block the threat in an effective manner. The Microsoft 365 Defender Threat Intelligence Team dubbed Qakbot a...

Emotet’s Behavior & Spread Are Omens of Ransomware Attacks

The rapid spread of Emotet via TrickBot and its behavior since the malware resurfaced last month could signal that a spate of ransomware attacks are on the way, spurring researchers to warn organizations to buckle up and get ready. In mid-November, a team of researchers from Cryptolaemus, G DATA...

BlackByte ransomware exploits Microsoft Servers ProxyShell Vulnerabilities

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. BlackByte ransomware is targeting organizations with unpatched ProxyShell vulnerabilities. Proxy Shell was addressed by hive pro threat researcher in the previous advisory released on August 24. ProxyShell is a combination of...

SolarWinds Attackers Spotted Using New Tactics, Malware

One year after the notorious and far-reaching SolarWinds supply-chain attacks, its orchestrators are on the offensive again. Researchers said they’ve seen the threat group – which Microsoft refers to as “Nobelium” and which is linked to Russia’s spy agency – compromising global business and...

Shape-Shifting ‘Tardigrade’ Malware Hits Vaccine Makers

An APT has attacked two separate vaccine manufacturers this year using a shape-shifting malware that appears at first to be a ransomware attack but later shows to be far more sophisticated, researchers have found. Dubbed Tardigrade by the Bioeconomy ​​Information Sharing and Analysis Center...

Hackers Using Microsoft MSHTML Flaw to Spy on Targeted PCs with Malware

A new Iranian threat actor has been discovered exploiting a now-addressed critical flaw in the Microsoft Windows MSHTML platform to target Farsi-speaking victims with a previously undocumented PowerShell-based information stealer designed to harvest extensive details from infected machines. "The...

Hackers Exploiting ProxyLogon and ProxyShell Flaws in Spam Campaigns

Threat actors are exploiting ProxyLogon and ProxyShell exploits in unpatched Microsoft Exchange Servers as part of an ongoing spam campaign that leverages stolen email chains to bypass security software and deploy malware on vulnerable systems. The findings come from Trend Micro following an...

Registry-Recon - Cobalt Strike Aggressor Script That Performs System/AV/EDR Recon

Cobalt Strike Aggressor Script that Performs System/AV/EDR Recon. Author: Jess Hires Description As a red-team practitioner, we are often using tools that attempt to fingerprint details about a compromised system, preferably in the most stealthy way possible. Some of our usual tooling for this...

Conti Ransomware

Conti is a sophisticated Ransomware-as-a-Service RaaS model first detected in December 2019. Since its inception, its use has grown rapidly and has even displaced the use of other RaaS tools like Ryuk. The Cybersecurity and Infrastructure Security Agency CISA and the Federal Bureau of Investigati...